Try Konker. $5 bucks a review average. You also have some very inexpensive sources. In any case, you will have to write the reviews or pay someone. Does it affect you? No. The worst I have seen is a business owner waking up with 50 fewer reviews. They had good and fake moderated and so waited a while and some were put back and then they added more fake as well. That was 3 years ago. You are never penalized in my experience past that. A better way and more successful way is to use a service to get real reviews from their database of clients. Also, have a program in place to get reviews at the time of purchase or texting immediately after. I would only use fake for helping someone recover from bad reviews hurting the business. Of course, they need to change their ways before starting over, or it's all just a band-aid anyway. Good Luck!